Write the equation of the line containing the points (5, 5) and (-5, 0). Use the form y = mx + b.
A. y=1/2x+5/2
B. y=2x+10
C. y=-1/2x-5/2
D. y=-2x-10

Question

Write the equation of the line containing the points (5, 5) and (-5, 0).  Use the form y = mx + b.
A. y=1/2x+5/2
B. y=2x+10
C. y=-1/2x-5/2
D. y=-2x-10

dmndlife24 · Answer

We first need to find the slope containing those two points...

Formula:

$$m=\frac{ y2-y1 }{ x2-x1 }$$

If our points are (5, 5) and (-5, 0), then...
y2 = 0
y1 = 5
x2 = -5
x1 = 5

dmndlife24 · Answer

$$\frac{ (0) - (5) }{ (-5) - (5) }$$

dmndlife24 · Answer

$$m = \frac{ -5 }{ -10 } = \frac{ 1 }{ 2 }$$

dmndlife24 · Answer

From finding the slope, you should already know the answer :)

anonymous · Answer

yes thank you soo much ah i just really needed a refresher i learned all of this at the beginning of the year :)))